. >> for the last two weeks i've been working with leaders of both parties on a proposal to get our deficit under control. avoid tax hikes on the middle class, and to make sure we can spur jobs and economic growth. >> how we get there, god only knows. >> will an agreement bring positive change to the economy? former economic advisor to president reagan, art laffer is here. >> how is everything going? >> going we will on this end. not washington but on this end. there's recap for a second, if you will. the laffer curve that you game famous for. that's your theory on tax rates and revenue and it shows, the laffer curve, if you have a tax rate of zero obviously you correct zero revenue to run the government. if you have a tax rate, your theory holds of 100%, you also probably collect zero in revenue because you've disincentivized people to get to work. somewhere in your curve is the sweet spot of the tax rate that would allow for the most revenue. what is that sweet spot? >> i don't know where it is exactly, obviously. but i know the laffer curve, the operation in the upper income groups is mu